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| CAS No.: | 1445-79-0 |
|---|---|
| Name: | Gallium, trimethyl- |
| Article Data: | 67 |
| Cas Database | |
| Molecular Structure: | |
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| Formula: | C3H9Ga |
| Molecular Weight: | 114.827 |
| Synonyms: | Trimethylgallium ((CH3)3Ga);Trimethylgallane; |
| EINECS: | 215-897-6 |
| Density: | 1.151 g/cm3 |
| Melting Point: | -15.8 °C |
| Boiling Point: | 55.7 °C |
| Flash Point: | -18 °C |
| Solubility: | N/A |
| Appearance: | COA |
| Hazard Symbols: | F,C |
| Risk Codes: | 14-17-34 |
| Safety: | 7-16-43-45 |
| Transport Information: | UN 2845 |
| PSA: | 0.00000 |
| LogP: | 1.37060 |
trimethyl gallium
| Conditions | Yield |
|---|---|
| In neat (no solvent) heated slowly under 1E-2 mmHg in a trap-to-trap distillation apparatus (receiver flask at -196 °C), liberation of Me3Ga started at 50 °C, temp. was raised to 120 °C;; distillate contained benzene;; | 100% |
| Conditions | Yield |
|---|---|
| at 120 - 145℃; Solvent; Temperature; | A n/a B 98% |
| Conditions | Yield |
|---|---|
| With methylene chloride; sodium at 40 - 50℃; under 375.038 Torr; Inert atmosphere; Flow reactor; | A 93.7% B 96.8% |
| Conditions | Yield |
|---|---|
| With tridodecylamine In 5,5-dimethyl-1,3-cyclohexadiene at 100℃; for 1h; | 93.3% |
| Stage #1: gallium(III) trichloride With triethylaluminum Heating; Stage #2: trimethylaluminum at 160℃; | 85% |
| Stage #1: trimethylaluminum With triethylamine In toluene at 25 - 100℃; for 1h; Stage #2: gallium(III) trichloride In toluene Product distribution / selectivity; | 81% |
trimethyl gallium
| Conditions | Yield |
|---|---|
| In neat (no solvent) heated slowly under 1E-2 mmHg in a trap-to-trap distillation apparatus (receiver flask at -196 °C), liberation of Me3Ga started at 65 °C, proceeded rapidly at 120-130 °C;; contained traces of benzene;; | 93% |
| Conditions | Yield |
|---|---|
| Stage #1: gallium With magnesium at 60℃; for 1h; Inert atmosphere; Stage #2: methyl iodide In 1,3,5-trimethyl-benzene at 60 - 190℃; for 3.66h; | 92% |
| With magnesium In neat (no solvent) byproducts: MgI2; inert atm.; heating (autoclave, 120-160°C, 12 h); distn.; | 65% |
gallium
methyl magnesium iodide
iodine
methyl iodide
trimethyl gallium
| Conditions | Yield |
|---|---|
| Stage #1: gallium; iodine; methyl iodide In toluene at 40 - 50℃; for 6h; Inert atmosphere; Sonication; Stage #2: methyl magnesium iodide In toluene at 100 - 110℃; for 5h; Inert atmosphere; | 92% |
| Conditions | Yield |
|---|---|
| at 20 - 140℃; Glovebox; Inert atmosphere; | 92% |
trimethyl gallium
| Conditions | Yield |
|---|---|
| In neat (no solvent) heated slowly under 1E-2 mmHg in a trap-to-trap distillation apparatus (receiver flask at -196 °C), liberation of Me3Ga started at 85 °C, the rate was more satisfactory at 110-130 °C;; | 91% |
| Conditions | Yield |
|---|---|
| Reflux; | 90% |
| In neat (no solvent) warming the mixt. of GaCl3 and trimethylaluminum from 233 K to room temp., stirring for 90 min; vaporization of volatiles in vac., fractional condensation at 178 K; IR; | |
| Stage #1: trimethylaluminum at 80 - 85℃; under 187.519 Torr; for 0.5h; Stage #2: Gallium trichloride at 80 - 90℃; for 0.5h; |
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*Required Fields
The Trimethyl gallium with CAS registry number of 1445-79-0 is also called Gallium, trimethyl-. Its EINECS registry number is 215-897-6. The IUPAC name is trimethylgallane. In addition, the molecular formula is C3H9Ga and the molecular weight is 114.83.
Physical properties about this chemical are: (1)Exact Mass: 113.996006; (2)MonoIsotopic Mass: 113.996006; (3)Heavy Atom Count: 4; (4)Complexity: 8; (5)Covalently-Bonded Unit Count: 1.
Preparation of Trimethyl gallium: The methylmagnesium iodide can react with gallium trichloride to give trimethylgallium ether. Then trimethylgallium ether can disintegrate to get the product. And you get the high purity trimethyl gallium through the operation of distillation, separation, distillation and purification.
Uses of Trimethyl gallium: this chemical can be used for metal organic chemical vapor deposition (MOCVD) and in preparation of semiconductor compounds such as GaAs and AsGaAl. Besides, it can be used in the manufacture of solar cells. In addition, it can react with benzylideneacetone to get 3-(1-phenylethyl)pentane-2,4-dione. This reaction will need solvent diethyl ether. The yield is about 71%.
When you are using this chemical, please be cautious about it as the following:
It is spontaneously flammable in air and can react violently with water. And it can cause burns. In case of fire, use ... (indicate in the space the precise type of fire-fighting equipment. If water increases the risk add - Never use water). And in case of accident or if you feel unwell, seek medical advice immediately (show label where possible). You should keep container tightly closed and keep away from sources of ignition - No smoking.
You can still convert the following datas into molecular structure:
(1)SMILES: [Ga](C)(C)C
(2)InChI: InChI=1/3CH3.Ga/h3*1H3;/rC3H9Ga/c1-4(2)3/h1-3H3
(3)InChIKey: XCZXGTMEAKBVPV-YHXBHQJBAF
